Bibliothèque du CERN (Genève, Switzerland)

Today, this stamp has been replaced by a contemporary barcode and address sticker, but the old version of the CERN stamp was interesting because of his round form, but missing lines. The letters form the circle, leaving space for the date of receiving in the middle, but there are no circle lines which underline the form. The CERN, one of the most well-known research institutions for Theoretical Physics, based in France and Switzerland, is also famous for the invention of the world wide web.